Documents / Official release
This Federal Bureau of Investigation file section, 62-HQ-83894 Section 6 (serials 246 to 301), collects FBI memoranda and correspondence from 1950 to 1952 on flying saucers. It covers green fireballs and discs seen near sensitive installations in New Mexico, Dr. Lincoln LaPaz's analysis, and the Air Force's Land-Air study known as Project Twinkle. It also holds an OSI summary, a USAF directive on reporting unconventional aircraft, a dissolving object reported by Philadelphia police, and letters from members of the public.
From the source:Release of 2026-05-08 Incident: N/A, N/A. The FBI's 62-HQ-83894 case file includes investigative records, eyewitness testimonies, and public reports concerning Unidentified Flying Objects and flying discs documented between June 1947 and July 1968. The records include high-profile incident accounts, photographic evidence from sites like Oak Ridge, TN, and technical proposals regarding potential propulsion systems. Additional topics include convention programs, researcher accounts, and extensive media coverage from the period. This file is partially posted on FBI vault with more redactions and some pages missing. Included here is the complete case file with several newly declassified pages and only minor redactions.
“Headquarters”18 pages
Summary of Sightings of Unknown Aerial Phenomena, 17th District OSI (cont) Number Date Time Number of Observers *Reliability of Observers General Area of Occurrence Apparent Direction of Flight Apparent Altitude Course Horizontal to Vertical Color Train or Trail Duration of Observation Sound Shape Apparent Size Apparent Speed Manner of Disappearance 75 1949/24 Jun 15451630 2 Unk Mesa,Arizona 1 to SE2 to E3 to NE4 vertical5 to E 4 Horizon1 Vertical Steel gray 4 at 30 mts1 at 25 secs None Discw/2 flanges Max of 400 mph Faded from view 76 27 Jun 0138 1 R Albuquerque,New Mexico W to E 30° to 90° above horizon Similar to star Slightly more orange Yes 2 mts None Round Slightly larger than brightest star 140° in 2 mts. Went behind building 77 29 Jun 2010 1 Unk Flagstaff,Arizona E to W 30° from vertical Yellow in front Red behind None None Bullet shaped 1/2 size of small air-plane Relatively slow Over a hill 8 30 Jun 1630 1 R Seligman,Arizona N 30° above horizon Dull grey None 8 secs None Circle Appeared 1/2 diameter at 10,000' altitude 2,000 mph or faster Disappeared in distance 79 11 Jul 2110 1 Unk Camp Hood,Texas W by SW 30° above horizon Pale red None 2 secs None Ball - but not a perfect circle Twice as large as evening star Such as turning off flashlight
Official release, from the pursue collection. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 271 pages are in the text index: search them above, or from the library's search.